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Help with 2d event on clicked

So I want to make a prophunt type 2d game, I want to be able to click on a sprite that is a prop and change my character to that prop, does anyone have an idea on how I could do this, I was thinking like a global variable Boolean but I am new to blueprints and do not know nearly anything. I just need some help with this, thank you.

This is my blueprint for the green keycard on the ground, I want my robot to go invisible and turn into the keycard when it is clicked on but it is not working. What am I doing wrong here? I am using the set paper sprite and trying to target it to my 2d character but it is not working.